| 一致概率谱衰减指数的取值方法探讨 |
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| 引用本文： | 兰宏亮,许丽萍,崔永高.一致概率谱衰减指数的取值方法探讨[J].震灾防御技术,2009,4(3):335-339. |
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| 作者姓名： | 兰宏亮 许丽萍 崔永高 |
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| 作者单位： | 上海岩土工程勘察设计研究院有限公司,上海,200002 |
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| 摘 要： | 在重大工程的地震安全性评价工作中,根据概率法地震危险性分析得到的一致概率反应谱,与建筑抗震设计规范给出的设计反应谱常常不一致,特别是在长周期部分,一致概率谱一般均低于相应的规范谱。为解决地震安全性评价得到的一致概率谱在抗震设计中的应用,本文通过比较、分析一致概率谱和规范谱,针对一致概率谱标定得到的衰减指数γ较规范谱明显偏大的特点,提出了一致概率谱衰减指数的取值方法。
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| 关 键 词： | 一致概率谱 规范谱 衰减指数 地震安评 |
| 收稿时间： | 2009/4/23 0:00:00 |
Discuss of Method to Determine Consistent Spectra Decaying Constant |
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| Lan Hongliang,Xu Liping and Cui Yonggao.Discuss of Method to Determine Consistent Spectra Decaying Constant[J].Technology for Earthquake Disaster Prevention,2009,4(3):335-339. |
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| Authors: | Lan Hongliang Xu Liping and Cui Yonggao |
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| Institution: | Shanghai Geotechnical Investigations & Design Institute Co. Ltd. Shanghai 200002, China;Shanghai Geotechnical Investigations & Design Institute Co. Ltd. Shanghai 200002, China;Shanghai Geotechnical Investigations & Design Institute Co. Ltd. Shanghai 200002, China |
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| Abstract: | Acceleration spectra determined by seismic safety evaluation for engineering site are often inconsistent with code spectra. Especially in long-period range, acceleration spectra determined by seismic safety evaluation are generally lower. In order to make usage of spectra determined by seismic safety evaluation in anti-earthquake design, we propose a method to determine consistent spectrum decaying constant γ. |
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| Keywords: | Consistent spectra Code spectra Decaying constant Seismic safety evaluation |
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